If you are going to stay in one hotel most of the time, I have had luck on priceline getting a room very cheap, around 25 dollars a night for Extended Stay Suites many times when I was working over by the airport. The rooms are very clean, you have a kitchen and are pretty well centrally located to within an hour to hour and half of almost all tracks except Haubstadt. Don't know what your plans were as far as money you wanted to spend, but just throwing this suggestion out there.